Climate and monthly weather forecast
Germantown, WI

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Weather in January

January, the same as December, in Germantown, Wisconsin, is a freezing cold winter month, with an average temperature varying between 25.2°F (-3.8°C) and 14.4°F (-9.8°C). Germantown's January weather, marked by an average high temperature of 25.2°F (-3.8°C) and an average low temperature of 14.4°F (-9.8°C), is the coldest in the year. Weather in January »

Weather in February

The last month of the winter, February, is also a subzero cold month in Germantown, Wisconsin, with an average temperature varying between 28°F (-2.2°C) and 17.2°F (-8.2°C). Upon the beginning of February, Germantown's high-temperatures register at a still freezing cold 28°F (-2.2°C), closely mirroring the preceding month. Weather in February »

Weather in March

March, the first month of the spring in Germantown, is a cold month, with an average temperature fluctuating between 39.4°F (4.1°C) and 28.2°F (-2.1°C). A rise in the average high-temperature is observed during March, moving from a subzero cold 28°F (-2.2°C) in February to a wintry 39.4°F (4.1°C). Weather in March »

Weather in April

April is a fresh spring month in Germantown, Wisconsin, with an average temperature fluctuating between 37°F (2.8°C) and 50.2°F (10.1°C). April's arrival is marked by an increase in the average high-temperature, moving from a cold 39.4°F (4.1°C) in March to a fresh 50.2°F (10.1°C). Weather in April »

Weather in May

May, the last month of the spring in Germantown, is a refreshing month, with an average temperature ranging between min 47.1°F (8.4°C) and max 62.1°F (16.7°C). May brings a temperature change, with average high-temperatures moving from April's fresh 50.2°F (10.1°C) to a refreshing 62.1°F (16.7°C). Weather in May »

Weather in June

The first month of the summer, June, is an agreeable month in Germantown, Wisconsin, with an average temperature fluctuating between 56.3°F (13.5°C) and 71.2°F (21.8°C). Germantown's June weather brings a rise in high-temperatures, moving from a comfortable 62.1°F (16.7°C) in May to a pleasant 71.2°F (21.8°C). Weather in June »

Weather in July

July is a moderately hot summer month in Germantown, Wisconsin, with an average temperature varying between 63.1°F (17.3°C) and 77.5°F (25.3°C). July, noted for its average high-temperature of 77.5°F (25.3°C) and an average low-temperature of 63.1°F (17.3°C), is considered the warmest month. Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Germantown, Wisconsin, with an average temperature varying between 76.6°F (24.8°C) and 61.9°F (16.6°C). As Germantown welcomes August, the average high-temperature records at a still moderately hot 76.6°F (24.8°C), marking an insignificant deviation from the prior month. Weather in August »

Weather in September

The first month of the autumn, September, is still a pleasant month in Germantown, Wisconsin, with an average temperature varying between 70°F (21.1°C) and 55.4°F (13°C). Germantown's September weather shows a modest shift in high-temperatures, falling from August's moderately hot 76.6°F (24.8°C) to a pleasant 70°F (21.1°C). Weather in September »

Weather in October

October, like September, is another refreshing autumn month in Germantown, Wisconsin, with an average temperature varying between 56.8°F (13.8°C) and 43.7°F (6.5°C). The onset of October is marked by a decrease in temperature, transitioning from an agreeable 70°F (21.1°C) in September to a refreshing 56.8°F (13.8°C). Weather in October »

Weather in November

November, the last month of the autumn in Germantown, is also a frosty month, with an average temperature varying between 32.4°F (0.2°C) and 43.3°F (6.3°C). The transition into November is accompanied by a temperature decrease, with the average high-temperature shifting from a mild 56.8°F (13.8°C) in October to a chilly 43.3°F (6.3°C). Weather in November »

Weather in December

December, the first month of the winter in Germantown, is still a freezing cold month, with temperature in the range of an average low of 22.8°F (-5.1°C) and an average high of 31.5°F (-0.3°C). December indicates a shift in the average high-temperature, from November's frosty 43.3°F (6.3°C) to a subzero cold 31.5°F (-0.3°C). Weather in December »
Updated: Feb 14, 2024 | Published by: Weather U.S. | Resources

Frequently asked questions

What are the coldest months in Germantown?

The lowest temperatures are recorded in January, with averages reaching a high of 25.2°F (-3.8°C) and a low of 14.4°F (-9.8°C).

What is the most humid month in Germantown?

The most humid month in Germantown, Wisconsin, is January, with an average relative humidity of 87%.

How many days does it rain in Germantown?

Throughout the year, in Germantown, Wisconsin, there are 139.2 rainfall days, and 25.28" (642mm) of precipitation is accumulated.

When does it snow in Germantown?

Months with snowfall are January through April, October through December.

When does it snow the most in Germantown?

January is the month with the most snowfall. Snow falls for 12.6 days and accumulates 4.02" (102mm) of snow.

How many days does it snow in Germantown?

Throughout the year, there are 48.9 snowfall days, and 15.35" (390mm) of snow is accumulated.

What is the month with the least sunshine in Germantown?

January has the least sunshine of the year, with an average of 3.6h of sunshine.

What are the months with the lowest UV index in Germantown?

The months with the lowest UV index are January, November and December, with an average maximum UV index of 1.

What is the driest month in Germantown?

February is the month with the least rainfall in Germantown, Wisconsin. Rain falls for 4.1 days and accumulates 1.02" (26mm) of precipitation.

When is Daylight Saving Time (DST) in Germantown?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Germantown, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.

What is the rainiest month in Germantown?

May is the month with the most rainfall. Rain falls for 17 days and accumulates 3.11" (79mm) of precipitation.

When it does not snow in Germantown?

In Germantown, Wisconsin, snow does not fall in May through September.

When are the longest days in Germantown?

With an average of 15h and 18min of daylight, June has the longest days of the year.

What part of the year is the hottest in Germantown?

During the warmest month in Germantown, July, temperatures average a high of 77.5°F (25.3°C) and a low of 63.1°F (17.3°C).

What month has the most sunshine in Germantown?

The month with the most sunshine is July, with an average of 10.5h of sunshine.

When is the highest UV index in Germantown?

July is the month with the highest UV index, with an average maximum UV index of 6.

What is the least humid month in Germantown?

With an average relative humidity of 76%, October is the least humid month in Germantown.

What is the month with the shortest days in Germantown?

December has the shortest days of the year in Germantown, Wisconsin, with an average of 9h and 0min of daylight.

Average temperature
Germantown, WI

Average temperature - Germantown, WI

The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (25.2°F).

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).

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Average pressure
Germantown, WI

Average pressure - Germantown, WI

The months with the highest atmospheric pressure are January, February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed
Germantown, WI

Average wind speed - Germantown, WI

The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

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Average rainfall
Germantown, WI

Average rainfall - Germantown, WI

The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is February (1.02").

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Average rainfall days
Germantown, WI

Average rainfall days - Germantown, WI

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (4.1 days).

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Average snowfall
Germantown, WI

Average snowfall - Germantown, WI

The month with the highest snowfall is January (4.02").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days
Germantown, WI

Average snowfall days - Germantown, WI

The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight / Average sunshine
Germantown, WI

Average daylight / Average sunshine - Germantown, WI

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

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Average sunshine days
Germantown, WI

Average sunshine days - Germantown, WI

The month with the most sunshine days is December (15.9 days).
The month with the least sunshine days is April (12 days).

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Average visibility
Germantown, WI

Average visibility - Germantown, WI

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

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Germantown, Wisconsin, USA

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